Kate Middleton wore a $69.90 Zara dress for a surprise family outing

It’s finally sundress weather, and just like the rest of us, Kate Middleton loves an inexpensive option for a day out with the kids. On a sunny Sunday, she took Prince George and Princess Charlotte to watch Prince William compete for the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club.

The duchess and mom of three opted for a summery blue and white striped dress that retails at Zara for $69.90. The dress, which is still available, has vertical gathering at the front and back with a belt at the waist in the same fabric.

Kate Middleton (Photo: Getty Images)

She paired the dress with a cute pair of neutral tone wedges — that the Daily Mail reports are Russell & Bromley — which are likely much easier to move in than the high heels she’s worn to formal events like Prince Harry’s wedding to Meghan Markle and the Trooping of the Color celebration.

The duchess attending the event was a surprise, so fans were delighted when she joined the match with George and Charlotte. She took in the match with cousin-in-law Autumn Phillips, who brought her children as well.

Kate Middleton (Photo: Getty Images)

Both mom and kids looked happy to be relaxing in the park the day after the annual Trooping the Color parade on Saturday. The event brings much of the royal family and thousands of spectators to Buckingham Palace. The young brother and sister duo made their appearance on the balcony with the rest of the family. Matching their mother’s color scheme, Charlotte wore a patterned blue dress along with a red bow in her hair. George, meanwhile, looked dapper in a white collared shirt with blue trim.

Prince William and Kate Middleton’s third child, Prince Louis, was noticeably absent from Saturday’s event and Sunday’s outing. At just under 2 months old, people are anticipating his official debut, which will most likely be at his christening.